Knife switch

Dual pole, dual throw knife switch in one of its two closed positions.

A knife switch is a type of switch used to control the flow of electricity in a circuit. It is composed of a hinge which allows a metal lever, or knife, to be lifted from or inserted into a slot or jaw. The hinge and jaw are both fixed to an insulated base, and the knife has an insulated handle to grip at one end. Current flows through the switch when the knife is pushed into the jaw. Knife switches can take several forms, including single throw, in which the "knife" engages with only a single slot, and double throw, in which the knife hinge is placed between two slots and can engage with either one. Also, multiple knives may be attached to a single handle and can be used to activate more than one circuit simultaneously.

单词	Knife switch
释义	Knife switch 原声例句现代大学英语精读(第2版)第三册 During this time, they saw the switch knife. 期间，他的朋友们都看到了这把弹簧刀。现代大学英语精读(第2版)第三册 Here's how. Underhand. Anyone who's used a switch knife wouldn't handle it any other way. 应该这样用刀，由下往上。任何一个用过弹簧刀的人都不会用别的手法。英语百科 Knife switch A knife switch is a type of switch used to control the flow of electricity in a circuit. It is composed of a hinge which allows a metal lever, or knife, to be lifted from or inserted into a slot or jaw. The hinge and jaw are both fixed to an insulated base, and the knife has an insulated handle to grip at one end. Current flows through the switch when the knife is pushed into the jaw. Knife switches can take several forms, including single throw, in which the "knife" engages with only a single slot, and double throw, in which the knife hinge is placed between two slots and can engage with either one. Also, multiple knives may be attached to a single handle and can be used to activate more than one circuit simultaneously.
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